The suspects (one pictured above) knocked on the 49-year-old victim’s door at his home on Cypress Avenue at 1 p.m. Sept. 26 and flashed police shields and identified themselves as officers, cops said.

A group of thieves (one pictured above) attacked and robbed a man on the subway in Crown Heights, authorities said.

Manhattan

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The body of a man was found floating in the Hudson River off the Upper West Side yesterday.

The corpse was spotted off the Henry Hudson Parkway at West 82nd Street at about 7:15 a.m. by someone who called 911.

The victim, in his 30s, was fully clothed, and there were no obvious signs of trauma.

The cause of death will be determined by the city’s medical examiner.

Brooklyn

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A man is wanted for spraying a female subway conductor with a substance in a Prospect Lefferts Gardens station, authorities said.

Enrique Tirado, 38, was riding on the northbound 4 train at about 3:50 p.m. on Oct. 21 when he got off at the Sterling Street station, police said.

He walked off the train at the same time as the MTA employee, and then allegedly sprayed her with an unknown substance before fleeing the station.

He is 5-foot-8 and 170 pounds.

***

A group of thieves attacked and robbed a man on the subway in Crown Heights, authorities said.

The victim was on a southbound 4 train near the Utica Avenue station at around 10:45 p.m. on Oct. 5 when the trio approached him, police said.

The suspects, in their 20s, punched the man in the face and snatched the watch off of his wrist, cops said.

The three fled the train at the Utica Avenue-Eastern Parkway station.

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A Bushwick teen was shot in the head on Wyckoff Avenue late Saturday night and died two days later, cops said yesterday.

The victim, Jorge Rosario, 17, had prior arrests for criminal possession of a weapon and possession of a controlled substance, cops said.

Staten Island

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Cops busted two men who allegedly robbed an Elm Park steakhouse.

Patrick Henry, 21, and Donnell Walters, 18, went into the Hibachi Grill and Supreme Buffet on Forest Avenue near Barrett Avenue after it closed at 11:30 p.m. on Nov. 18, court records say. There they allegedly grabbed an iPhone and cash.

Cops nabbed Henry minutes later and found the phone in his pocket and the stolen cash in his wallet, authorities said.

***

An enraged man bashed another man in the face with a bottle in Port Richmond, authorities said.